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Group names no last namesPeriod #Impact of Last EruptionPictures of Mauna Loa's last eruption (1984)Insert Pictureabout Last EruptionLava flow:Mauna Loa 1942Tectonic Plates and Interaction3D illustration of the Hawaiian chain of islandsMauna LoaMauna Loa is the Hawaiian name for “Long mountain”

This "long mountain" about 120km from the southern tip of the island to the summit and then North-East to the coastline near Hilo.

Mauna Loa is one of the largest volcanoes on earth in terms of volume and area covered.Cover at least half of the Island of Hawaii. Mauna Loa by itself cover about 85% of all the other Hawaiian Island combined.

Lava eruptions at Mauna Loa are silica-poor and very fluid.Eruptions are generally non-explosive The Volcano has shallow slopes.Occurs in the specific ocean and is part of the U.S state of Hawaii.

The flows can burn houses down and cover the ground with a thick impenetrable layer of black rock.

About 42 km2 of land were paved over by the 1984 flows.

The fluid, high-velocity flows of 1984 stopped just 6.5km short of the coastal town of Hilo as residents packed to evacuateOther effects of the 1984 eruptionAside from flood basalts, Mauna Loa's caldera emitted a noxious mixture of fumes called volcanic smog (or "vog").

This smelly gas is a combination of sulfur dioxide, carbon dioxide and hydrogen sulfide.

The smog reacts with atmospheric moisture, sunlight and oxygen to form acidic aerosols that contributed to the creation of acute acid rainfall.

The aerosol pollutants caused probable lung degradation and threatened respiratory function, especially in children and asthmatics.The magma comes from the Hawaii hotspot

This lead to the creation of the Hawaiin island chain over tens of millions of years.

The slow drift of the Pacific Plate will eventually carry Mauna Loa away from the hotspot

May occur within 500,000 to one million years from now thus becoming extinctMauna LoaMauiOahuKauaiEruption history of Mauna LoaMatthys Grobler213476495The 1984 Mauna Loa eruption continued for 3 weeks and began around 1:30 a.m on March 25.

It started in the southwest corner of the volcano's Moku'aweoweo summit crater.

Within three hours, 80% of the crater was covered with lava, but it never breached the rim.

The eruption then shifted to the opposite side of the caldera.

Other high-volume basalt floods flowed out of rift zones on Mauna Loa's flanks.